Bereavement and funeral attendance

namaste


I recently lost a grandparent to dementia. Because of circumstances, I am unable to attend the funeral. This is very painful, as you can imagine.


I would like to "do something", a ritual or observance of some kind but I am not sure. The funeral is in 2 days time but I think any observance after then would be okay.


I have briefly looked online, but I am at a loss. What can be done? I am a lone, fresh Hindu should I turn to texts like the Gita for ideas? It would be a start I suppose. Apologies, bit emotional..


Thank you for any input.